/*
 * Copyright (C) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.sentry.adapters;

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;

import io.sentry.DateUtils;
import io.sentry.SentryLevel;
import io.sentry.SentryOptions;

import java.lang.reflect.Type;
import java.util.Date;

import org.jetbrains.annotations.ApiStatus;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

/**
 * DateDeserializerAdapter
 *
 * @since 2021-06-02
 */

@ApiStatus.Internal
public final class DateDeserializerAdapter implements JsonDeserializer<Date> {
    private final @NotNull SentryOptions options;

    /**
     * DateDeserializerAdapter constructor
     *
     * @param options Sentry SDK options
     */
    public DateDeserializerAdapter(final @NotNull SentryOptions options) {
        this.options = options;
    }

    @Override
    public @Nullable Date deserialize(
        final @Nullable JsonElement json,
        final @NotNull Type typeOfT,
        final @NotNull JsonDeserializationContext context)
        throws JsonParseException {
        try {
            return json == null ? null : DateUtils.getDateTime(json.getAsString());
        } catch (IllegalArgumentException e) {
            options
                .getLogger()
                .log(
                    SentryLevel.DEBUG,
                    "Error when deserializing UTC timestamp format, it might be millis timestamp format.",
                    e);
        }
        try {
            return DateUtils.getDateTimeWithMillisPrecision(json.getAsString());
        } catch (IllegalArgumentException e) {
            options
                .getLogger()
                .log(SentryLevel.ERROR, "Error when deserializing millis timestamp format.", e);
        }
        return null;
    }
}
